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Problem with .NET, BadImageFormatException + iertutil.dll
Hi,
A few days ago Windows installed a bunch of updates that caused inability to run a couple of programs. It looks like all of them use .Net. The problems are:
1) One program can't start popping up error window with message "An error occurred: System.BadImageFormatException. HRESULT=0x800700B6"
2) A bunch of other programs (like Adobe Acrobat Reader installation or some native Windows tools) fails with error about missing entry 379 in library iertutil.dll.
I did "sfc /scannow" which didn't find any problems. I tried to uninstall updates that were installed on the unlucky day but the problem is still on.
As I know .NET 3.5 is an integral part of Win 7 and can't be reinstalled. I have also googled that iertutil.dll is a part of internet explorer which points to another problem: Windows Update has not been able to install IE9 for a couple of months (error code 9C48). I was disregarding this because I use different browser and no other problems I noticed. But maybe now it's a problem due to iertutil.dll.
I downloaded Windows6.1-KB947821-v20-x64 tool that is recommended to run when there are some problems with windows update but it didn't help.
Thanks in advance for any suggestions what shall I do next.